History Film / KamenRiderGeatsXKamenRiderReviceMovieBattleRoyale

!All spoilers for ''Series/KamenRiderRyuki'' and ''Series/KamenRiderRevice'' are unmarked. Administrivia/YouHaveBeenWarned!

* Girori's beliefs in Kamen Riders winning their wishes through heroic displays and hard work [[spoiler:comes to play in the finale when he returns and sides with Ace against the corrupt DGP.]]

!All spoilers for ''Series/KamenRiderRevice'' are unmarked. Administrivia/YouHaveBeenWarned!

Meanwhile, the DGP is hijacked by a man named Colus, who repurposes the game into the "Desire Royale", said to be the worse game in existence. with Koushiro's inner demon serving as a key in this game, the DGP participants and Ikki's group of Riders come to blows.

Life have settled down for Igarashi family, and recently they welcomed a new member: Koushiro. Ikki, however, still doesn't remember Vice. When Koushiro is targeted for having his own inner demon like his older siblings, Ikki finds himself struggling to remember his dearest family in order to help.

Meanwhile, the DGP is hijacked by a man named Colus, who repurposes the game into the "Desire Royale", said to be the worse game in existence. with Koushiro's inner demon serving as a key in this group, the DGP participants and Ikki's group of Riders come to blows.

* VillainOfAnotherStory: [[Series/KamenRiderRyuki Ouja and Ryuga]] are back again to raise hell, this time as participants in the Desire Royale.
** This also serves as a SequelHook of sorts considering Ouja's role in the then-upcoming ''Series/KamenRiderOutsiders''.

** Kagero discovers Keiwa has an obscenely powerful inner demon that rivals the likes of himself and Vail [[AllPowerfulBystander yet has curiously declined to make itself known on its own accord]]. Later in the series, Keiwa is put into increasingly dark situations by the DGP and goaded by Kekera into following his ideals, all in a bid to try and make Keiwa a more ruthless person.

* NonSerialMovie: The movie doesn't fit very neatly into ''Geats'' timeline. Michinaga being dead and Girori still being Game Master would place it between Episodes 15 and 16, but the former ends in Girori forcing the participants into a bonus round where Keiwa and Neon are supposed to hunt down and kill Ace, events which culminate in Girori being reported and ousted by Niram. No mention of this is made in the movie, and Ace, Keiwa, and Neon are just shown hanging out as friends. The movie is still considered canon, though, considering how later episodes of Geats do make direct references to its events.

** During Ace, Neon, and Keiwa's introduction, they are playing in a board game cafe, and while the former two are using generic swordsman and witch costumes, Keiwa seems to be wearing one inspired by the Priest class in the ''Franchise/DragonQuest'' series. Also, an extra is seen wearing Creator/BruceLee's iconic yellow jumpsuit in the background.

* UnexplainedRecovery: The other Geats main cast are quite baffled to see Michinaga alive and well at the cafe. [[spoiler: Given that he wasn't really dead, though, it's possible he was just summoned from the garden.]]

** This also serves as a SequelHook of sorts considering Ouja's role in the then upcoming Series/KamenRiderOutsiders,

* BreakingTheFourthWall: After Vice returns, he takes a moment to tell the audience they can see him at the movie theater.

* InMediaRes: The movie starts with Ikki being wheeled into a hospital as he has a nightmare, with the first quarter of the movie building up to the events that led him to this moment.

* TheStinger: Post end-credits, we get a scene of [[spoiler:Girori talking with [[TheManBehindTheMan Niram]]]].

* MythologyGag: When George meets Tsumuri after being brainwashed, he introduces himself as [[Series/KamenRiderDecade a passing through Kamen Rider fan]].

* GagCensor: During the start of the movie, with the Igarashi family on vacation, the three male members are seen nude with their crotches covered by the heads of their respective Rider forms.

** When George meets Tsumuri after being brainwashed, he introduces himself as [[Series/KamenRiderDecade a passing through Kamen Rider fan]].
** During Ace, Neon, and Keiwa's introduction, they are playing in a board game cafe, and while the former two are using generic swordsman and witch costumes, Keiwa seems to be wearing one inspired by the Priest class in the Dragon Quest series. Also, an extra is seen wearing Bruce Lee's iconic yellow jumpsuit in the background.

** Girori is revealed to not be the only DGP Game Master, and to have a predecessor in Korath. [[spoiler:It's later shown there are multiple Game Masters among the DGP Staff, with Girori being easily replaceable in his position.]]